LMZ31707 2.95V to 17V, 7A Step-Down Power Module with Current Sharing in 10x10x4.3mm QFN Package | TI.com

LMZ31707 (ACTIVE) 2.95V to 17V, 7A Step-Down Power Module with Current Sharing in 10x10x4.3mm QFN Package

 

Description

The LMZ31707 SIMPLE SWITCHER® power module is an easy-to-use integrated power solution that combines a 7-A DC-DC converter with power MOSFETs, a shielded inductor, and passives into a low profile, QFN package. This total power solution allows as few as three external components and eliminates the loop compensation and magnetics part selection process.

The 10 × 10 × 4.3 mm QFN package is easy to solder onto a printed circuit board and allows a compact point-of-load design. Achieves greater than 95% efficiency and excellent power dissipation capability with a thermal impedance of 13.3°C/W. The LMZ31707 offers the flexibility and the feature-set of a discrete point-of-load design and is ideal for powering a wide range of ICs and systems. Advanced packaging technology affords a robust and reliable power solution compatible with standard QFN mounting and testing techniques.

Features

  • Complete integrated power solution allows
    small footprint, low-profile design
  • 10 mm × 10 mm × 4.3 mm package
    • Pin compatible with LMZ31710 and LMZ31704
  • Efficiencies Up To 95%
  • Eco-mode™ / light load efficiency (LLE)
  • Wide-output voltage adjust
    0.6 V to 5.5 V, with 1% reference accuracy
  • Supports parallel operation for higher current
  • Optional split power rail allows
    input voltage down to 2.95 V
  • Adjustable switching frequency
    (200 kHz to 1.2 MHz)
  • Synchronizes to an external clock
  • Provides 180° out-of-phase clock signal
  • Adjustable slow start
  • Output voltage sequencing / tracking
  • Power good output
  • Programmable undervoltage lockout (UVLO)
  • Overcurrent and overtemperature protection
  • Pre-Bias output start-up
  • Operating temperature range: –40°C to +85°C
  • Enhanced thermal performance: 13.3°C/W
  • Meets EN55022 Class B emissions
    • Integrated shielded inductor
  • Create a custom design using the LMZ31707 with the WEBENCH® Power Designer

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WEBENCH® Designer LMZ31707

  Min   Max Range
Vin  V 4.5 to 17.0V
Vout  V 0.6 to 5.5V
Iout  A ≤ 7A
Ambient Temp  °C -40 to 125°C

Parametrics

Compare all products in Buck converters (integrated switch) Email Download to Excel
Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Control mode Duty cycle (Max) (%) Operating temperature range (C) Package Group Type Package size: mm2:W x L (PKG)
LMZ31707 Order now 2.95     17     0.6     5.5     7     1     200     1200     0.8     Current Sharing
EMI Tested
Frequency Synchronization
Power Good
Remote Sense
Tracking
Light Load Efficiency    
  100     -40 to 85     B3QFN | 42     Module     42B3QFN: 100 mm2: 10 x 10 (B3QFN | 42)    
LMZ31506 Order now 2.95     14.5     0.6     5.5     6     1     250     780     13.4     Current Sharing
EMI Tested
Enable
Frequency Synchronization
Power Good
Remote Sense
Tracking    
  100     -40 to 85     B1QFN | 47     Module     47B1QFN: 135 mm2: 9 x 15 (B1QFN | 47)    
LMZ31704 Order now 2.95     17     0.6     5.5     4     1     200     1200     0.8     Current Sharing
EMI Tested
Frequency Synchronization
Power Good
Remote Sense
Tracking
Light Load Efficiency    
  100     -40 to 85     B3QFN | 42     Module     42B3QFN: 100 mm2: 10 x 10 (B3QFN | 42)    
TPSM84424 Order now 4.5     17     0.6     10     4     1     200     1600     19     EMI Tested
Enable
Frequency Synchronization
Power Good
TurboTrans    
Current Mode     75     -40 to 105     QFM | 24     Module     See datasheet (QFM)    
TPSM84624 Order now 4.5     17     0.6     10     6     1     200     1600     19     EMI Tested
Enable
Frequency Synchronization
Power Good
TurboTrans    
Current Mode     75     -40 to 105     QFM | 24     Module     See datasheet (QFM)    
TPSM84824 Order now 4.5     17     0.6     10     8     1